Title: Process for producing trisodium phosphate and ammonium salt by metathesis
Application Number: 93105997 Application Date: 1993.05.13
Publication Number: 1079205 Publication Date: 1993.12.08
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C01B25/30,C01C1/00
Applicant(s) Name: Wang Changzhi Address: 830009
Inventor(s) Name:
Attorney & Agent: TA XIFU
Abstract:
     Diammonium phosphate or monoammonium phosphate and caustic soda are used as raw materials. Through metathesis reaction, cooling and crystallizing, Na3PO4.12H2O is obtained. Ammonia after metathesis reaction is adsorbed by water to obtain ammonia water or reacts with different acids to obtain series products of ammonium salts. Said process features high yield of products (over 98%), stable quality and low cost.
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